Radeon HD 7790 DirectCU II OC Edition is a special edition of the performance Radeon HD 7790. This edition comes with a cooling solution called DirectCU II, which achieves 20% lower temps and vastly quieter performance than reference with direct-contact copper heatpipes and dual fans, according to Asus. It also comes overclocked out of the box in the core-clock to 1075MHz and on the memory clock to 1600MHz, though the latter might prove useless, as this card might not benefit from extra bandwidth. Benchmarks indicate a 5% performance boost when compared to the reference card.